Power-loom



(No Model.)

- T. BROMLEY, Jr.

POWER LOOM. 6w.

N0. 418,349. Patented 1360.31, 1889.

IN ME N T D n UNITED STATES PATENT OFFICE.

THOMAS BROMLEY, JR, OF PHILADELPHIA, PENNSYLVANIA.

POWER-LOOM, 800.

SPECIFICATION forming part of Letters Patent No. 418,349, dated December31, 1889. Application filed May 16, 1889. Serial No. 311,085. (Nomodel.)

To all whom it may concern:

Be it known that I, THOMAS BROMLEY, Jr, a citizen of the United States,residing in the city and county of Philadelphia, and State ofPennsylvania, have invented a new and useful Improvement in Power-Loomsfor Weaving Smyrna Carpets and Rugs, of which the following is aspecification.

one side beinga facsimile of the other.

My invention consists in, first, a loom provided with a two-shuttle boxon each side of the loom and a mechanism to operate them pick and pick,in combination with a stop mechanism that will stop the loom every twoshots of weft; second, in combination with a mechanism that will stopthe loom every two shots, a mechanism by which the loom may be startedby the foot; third, a device by which the take-up may be changed and thebox-motion and stop-motion thrown out of action when weaving headings onrugs. I attain these objects by the mechanism illustrated in theaccompanying drawings, in which- Figure 1 is a front View of such partsof a power-loom as are required to show my improvements. Figs. 2 and 3are end views. Figs. 4: and 5 are sectional end views; and Figs. 6, 7,and 8 are views of parts detached from the loom.

Similar letters refer to similar parts throu ghout the several views.

The construction of my improved loom is as follows: The drawings showand represent a shuttle-box motion that is well known in the arts as theanchor shuttle-box motion.

B are the shuttle-boxes. These boxes I prefer to be constructed with theswells on the front of the box, as is customary on the Orompton andKnowles looms.

The boxes B are connected bya connection W, Fig. 1, which connection ismade of a rod 20 and short chains at each end, where it passes overpulleys w. The connection Wis so connected to the lifting-rods that bothboxes will rise and drop at the same time. The boxes are raised anddropped by the oscillating lever J, which is operated by thedouble-acting lifting-pawl F, known as the anchor, which anchor swingson the lower end of a yoke F The anchor is usually controlled by apattern-chain; but with my improvement it is controlled by a stepped camD, (plainly shown in Fig. 4,) which acts on lever E, which is connectedto the anchor by rod a. The cam D makes one revolution in two picks andchanges the shuttle-boxes every shot.

Fig. 5 shows the stop-motion, which is constructed and operated thesarneas a two-shot weft stop-motion, and consists of the usual cam b, (whichcam is placed on the lower or cam shaft,) alever G, a pawl d, slide g",and trigger 9 all shown in Fig. 5, and which parts are old and wellknown to weavers. The action of this stop-motion is not controlled bythe weft, but it is made to stop the loom every two shots. The pawl (Zis made with a shoulder J. V

T is a treadle fastened to the lower front rail of the loom by hinges ee, and is connected by rod P to a bell-crank lever B. (See Fig. 1.) Inone arm of this lever is a stud N. (See Fig 2.) This stud N, when thetreadleT is operated by the foot, presses against the handle A andstarts the loom in the same manner as if the handle A were operated bythe hand.

A is the starting-handle, which handle is connected to and operates thebelt-shifter in the usual manner in starting and stopping the loom.

The loom is provided with two take-ups, one of which is positive and theother conditional. The take-up shown in Fig. 3 is positive. It isoperated by the pawl O, which is operated from the crank-shaft, and maybe set to take two or more teeth of the ratchetwheel Y every revolutionof the crank-shaft, I

or for each shot of weft. This take-upoperates the feed ortakeqiprollerV, which should be spiked, and which roller V is driven, in theusual manner, by a pinion fixed to the hub of the ratchet-wheel Y.(Shown in Figs. 1 and 2.) The take-up shown in Fig. 2 is operated fromone of the lay-swords and takes up what the positive roller V gives off.This conditional take-up consists of a right-angled lever S weight 8*,pawl S retaining catch 5", ratchet-wheel S pinion S spur-wheel S androller S1 all of which are shown in Figs. 1 and 2. This above-describedtake-up and all its parts are old and well known to weav-. ers. and anyother conditional take-up may be substituted for the one shown in Figs.1 and 2, and thisis obvious to one skilled in the art of weaving.

Fig. 1 shows a rod M, which is mounted in stands on the front of theloom-frame. Fixed on this rod is an arm and handle L, and on the samerod are fixed the arms 1, 2, and 3. The arm 1, Fig. 3, is connected byrod 4 to a yoke 5. This yoke is formed with one long slot. It is mountedon the stud upon which the ratchet-wheel Y is hung and on another studfixed to the loom-frame, which is in direct line below the wheel-stud,as shown in Fig. 5. The arm 2, Fig. 5, is connected by rod 6 to slide 7,which slide is constructed as shown in Fig. 5, and has an incline h. Theslide is mounted on two tap-screws k passing through aslot h and screwedin the loom-side, upon which screws it is made to slide freely. The arm3, Fig. 4, is connected by rod 8 to bell-crank lever 9, to the lower endof which lever is attached a loop 10. Through this loop freely passesthe rod 11, which has a screw-thread on each end. The right-hand end 11is screwed in a swiveled nut 11, that is connected .to lever E. On theleft-hand end 11 is a nut 11. At the lower part of lever E is a rod a,having a screw-thread on each end, which rod connects the lever E toanchor F. The bottomof lever E is connected to the frame by a spiralspring K. (See Fig. 3.)

The operation of my improved loom is as follows: As before stated, myinvention belongs to looms for weaving by power a class of fabrics madeby. two wefts that are thrown shot-about, one weft being of jute, theother a-twisted chenille. In arranging the wefts in the boxes I preferto work the chenilleweft from the top box and the jute from the bottombox,,by which arrangement of the Wefts I can make a much evener andbetter selvage. Jute is the first shot thrown, which is beaten up by thelay. The boxes then drop and the chenille-weft is thrown. The cam Z2 isset so as to stop the loom before the heddles change or the lay moves tothe cloth-line, which permits the weaver to set the chenille. The weaverthen places the foot on the treadle T and starts the loom, throws a shotof jute No claim is made to it as being new,-

and a shot of chenille, when the loom stops for another set, as beforedescribed, and the loom so continues to stop every two'shots until a rugis woven, when it will be desirable to weave a heading. The heading iswoven with weft finer than and different to the weft in the body of therug, and it is desirable to run the loom continuously without change ofshuttles and with a change of take-up, as the number of picks in theheadings is usually double that in the body of the rug, I will supposethe body has eleven picks per inch,-

the heading will have twenty-two picks. The positive take-up is arrangedso as to require the pawl C to take for each pick two teeth of the wheelY, and when weaving the headings to take only one tooth. After havingwoven the full length of the body of a rug the shuttle containing thejute is removed and a shuttle containing weft for the headings is put inthe lower box. The handle Lis turned down and fastened by a small boltand Wingnut L", working in a slotted bracket L. This shifting of handleL will move the arms 1, 2, and 3, and by means of their connectionsshift the slide 7, raise the yoke 5, shift the loop 10 against the nuton rod 11, and when the loom is started the pawl cl as it moves forwardwill, by reason of the shoulder g coming against the incline'h on slide7, be raised over the stop-catch, and the stop-motion will not act whilethe slide 7 is in position shown by the dotted lines in Fig. 5. Thebell-crank lever 9 will hold the lever E in the position in which it isput by cam D to make the IOC anchor shift the bottom box so as to Workthe shuttle in that box, and the boxes will not be changed so long aslever E is held back by loop 10. The yoke 5 will be raised by arm 1, sothat the pawl C, on the return-pull, rests on the yoke 5 and only dropsso far as to take but one tooth of the wheel Y for each shot of weftwhile weaving the headings, and the loom will continue to weave with oneshuttle and a changed take-up until the heading is woven for the rugalready made and a heading for the beginning of the next rug to bewoven, whenthe handle L is put in position shown in the drawings, andthe loom will throw a shot of jute and one of chenille and stop for aset, as before described.

Having above described my improvements, I do not claim or confine myinvention to the form of a shuttle-box or stop-motions shown; but

As my invention I claim in a power-loom for weaving Smyrna carpets,rugs, and suchlike fabrics 1. A power-loom provided with a doubleshuttle-box on each side thereof, mechanism for operating said boxespick and pick, and a mechanism which stops the loom after every twopicks, as described.

2.v The combination, with a mechanism which stops the loom after everytwo shots of weft, of a mechanism by which the loom IIO may be startedby foot, as shown, described, crank lever 9, loop 10, rod 11, and leverE, and for the purpose specified. V as shown, described, and for thepurpose speci- 3. The combination of arm 2, rod 6, slide fied. 7 havingthe incline h, with pawl d, having THOMAS BROMLEY, JR. 5 a shoulder g,as shown, described, and for the Witnesses:

purpose specified. JOHN SHINN,

4. The combination of arm 3, rod S,be11- WVM. P. LOGAN.

